Tripartite motif containing 14: An oncogene in papillary thyroid carcinoma

Biochem Biophys Res Commun. 2020 Jan 8;521(2):360-367. doi: 10.1016/j.bbrc.2019.10.127. Epub 2019 Oct 24.

Abstract

Tripartite motif (TRIM)-containing protein 14 (TRIM14) is implicated in many malignancies. Presently, we studied whether TRIM14 played a role in human papillary thyroid carcinoma (PTC). Herein, TRIM14 was up-regulated in tumor tissues when compared with normal thyroid samples. Among PTC patients, enhanced TRIM14 predicted short recurrence free survival (RFS) time. Then, we found that knockdown of TRIM14 in human PTC K1 cells inhibited cell proliferation, induced cell apoptosis and prevented the tumorigenicity in nude mice. On the contrary, TRIM14 overexpression in human PTC TPC1 cells promoted cell proliferation while inhibited cell apoptosis. TRIM14 exerted its oncogenic activities via promoting the activation of signal transducer and activator of transcription 3 (STAT3). Further, TRIM14 interacted with the suppressor of cytokine-signaling-1 (SOCS1), a negative regulator of STAT3 activation, and knockdown of TRIM14 inhibited SOCS1 ubiquitination. In conclusion, TRIM14 may be a prognostic factor and oncogene in PTC, and may be a potential target for PTC intervention.

Keywords: Papillary thyroid carcinoma (PTC); SOCS1; STAT3 activation; TRIM14.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Apoptosis
  • Cell Line, Tumor
  • Cell Proliferation
  • Humans
  • Intracellular Signaling Peptides and Proteins / genetics*
  • Intracellular Signaling Peptides and Proteins / pharmacology
  • Mice
  • Mice, Nude
  • Oncogenes*
  • STAT3 Transcription Factor / metabolism
  • Suppressor of Cytokine Signaling 1 Protein / metabolism
  • Thyroid Cancer, Papillary / genetics*
  • Tripartite Motif Proteins / genetics*
  • Tripartite Motif Proteins / pharmacology
  • Ubiquitination / drug effects

Substances

  • Intracellular Signaling Peptides and Proteins
  • SOCS1 protein, human
  • STAT3 Transcription Factor
  • STAT3 protein, human
  • Suppressor of Cytokine Signaling 1 Protein
  • TRIM14 protein, human
  • Tripartite Motif Proteins